炼钢 ›› 2015, Vol. 31 ›› Issue (3): 13-16.

• 生产实践 • 上一篇    下一篇

低碳低硅铝镇静钢生产实践

张海民   

  1. 山东钢铁股份有限公司 济南分公司,山东 济南 250101
  • 收稿日期:2014-07-15 修回日期:2014-09-05 接受日期:1900-01-01 出版日期:2015-06-05 发布日期:2015-06-08
  • 通讯作者: 张海民 E-mail:oceanzhm@sina.com.cn

Production of Al-killed low carbon and low silicon steel

  • Received:2014-07-15 Revised:2014-09-05 Accepted:1900-01-01 Online:2015-06-05 Published:2015-06-08

摘要: 采用KR→BOF→CAS→RH→CCM工艺路线生产低碳低硅铝镇静钢,通过控制入炉铁水硫含量、转炉出钢挡渣及脱氧合金化、CAS精炼造渣、RH真空、钙处理、连铸过热度控制及稳定结晶器液面等,生产出满足用户要求的JNX06钢,其w(Si)控制在0.030%以下,低倍结果显示铸坯质量良好,C类中心偏析为1.0级,中心疏松0.5级。

关键词: 钙处理, 铝镇静钢, 精炼, 质量

Abstract: Al-killed low carbon and low silicon steel has been produced by KR→BOF→CAS→RH→CCM process route. JNX06 steel satisfying the customer’s requirements could be produced by controlling sulfur content of molten iron in the converter, tapping and slag skimming, deoxidation alloying, CAS refining and slagging, RH vacuum, Ca treatment procedure, continous casting superheat control and stabilizing mould level. The mass fraction of silicon was controlled below 0.030%. The results under low power showed that the quality of casting was good, the level of center segregation of C-class was 1.0 and center porosity was 0.5.